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arXiv 0711.2407cond-mat.mes-hallcond-mat.mtrl-sci
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面内磁场作用下量子阱中的电子散射

Electron scattering in quantum wells subjected to an in-plane magnetic field

S. A. Tarasenko

摘要:

结果表明,在面内磁场作用下,量子阱中的静态缺陷、声学声子或光学声子对电子的散射是不对称的。散射概率包含与电子波矢量和磁场分量都成比例的项。所研究的条款是由于量子阱中缺乏一个反转中心,由于结构或体反转不对称,虽然他们是纯粹的抗磁性起源。这种由磁场引起的散射不对称性可能导致许多现象。特别是,非弹性电子-声子相互作用的不对称性导致电流流动,如果只有电子气被驱离与晶格的热平衡。

英文摘要:

It is shown that the electron scattering by static defects, acoustic or optical phonons in quantum wells subjected to an in-plane magnetic field is asymmetric. The probability of scattering contains terms which are proportional to both the electron wave vector and the magnetic field components. The terms under study are caused by the lack of an inversion center in quantum wells due to structure or bulk inversion asymmetry although they are of pure diamagnetic origin. Such a magnetic field induced asymmetry of scattering can be responsible for a number of phenomena. In particular, the asymmetry of inelastic electron-phonon interaction leads to an electric current flow if only the electron gas is driven out of thermal equilibrium with the crystal lattice.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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